Equilibria in solutions of complexes of poly(acrylic acids) and poly(N-vinylazoles)

Annenkov, Vadim V.; Mazyar, N. L.; Kruglova, V. A.; Ananiev, S.M.

doi:10.1016/s0167-7322(01)00152-0

Cited by 15 publications

(5 citation statements)

References 3 publications

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“…15,16 The PVI-PSA precipitates were found to be stabilized by hydrogen bonds and exhibited near equimolar composition. However, the PVI samples used were not fractionated and contained a wide range of molecular mass fractions.…”

Section: Introductionmentioning

confidence: 99%

“…Recently we have shown that poly(1-vinylimidazole) (PVI) is capable of forming insoluble complexes with poly(silicic acid) (PSA) species and is active in co-operative complex formation with weak polymeric acids. 15,16 The PVI-PSA precipitates a Limnological Institute of Siberian Branch of Russian Academy of Sciences, 3, Ulan-Batorskaya St., P.O. Box 4199, Irkutsk, 664033, Russia.…”

Section: Introductionmentioning

confidence: 99%

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Controlled stabilisation of silicic acid below pH 9 using poly(1-vinylimidazole)

et al. 2008

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We show, for the first time, inhibition of silicic acid condensation over a wide range of pH, especially below 9 using certain molecular mass fractions of poly(1-vinylimidazole) (PVI). This is achieved by stabilisation of molybdate-active Si species, which are crucial to condensation and growth to form silica. The structure of the resulting composites depends on the molecular mass of the PVI chains. Long-chain macromolecules can ''encapsulate'' Si species giving rise to stable soluble complexes. Short PVI chains stimulate association of silica particles and at neutral pH precipitation occurs. Protonation of imidazole units in acidic pH results in dissolution of the precipitates. We believe that the results presented herein using PVI as a model system will help elucidate the mechanisms underpinning the molecular interactions between (bio)macromolecules and inorganic materials.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Controlled stabilisation of silicic acid below pH 9 using poly(1-vinylimidazole)

et al. 2008

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“…It was found26, 31 that PVI can give water‐soluble and nonsoluble interpolymer complexes with PAA. Hydrogen bonding was chosen as the main stabilizing force in these complexes, but there was speculation with the participation of bridging Na + and Li + ions in the complexing.…”

Section: Introductionmentioning

confidence: 99%

Complexation of copper(II) ions with imidazole–carboxylic polymeric systems

Annenkov

Danilovtseva

Saraev

et al. 2003

J. Polym. Sci. A Polym. Chem.

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The interaction of two polyampholyte systems, poly(1-vinylimidazole-coacrylic acid) and interpolymer complex poly(acrylic acid)/poly(1-vinylimidazole) with copper(II) ions in water, was examined with potentiometry (pH-metry and Cu-selective electrode) and electron spin-resonance spectroscopy. Coordination of Cu 2ϩ with copolymer proceeded by carboxylic groups, whereas the interpolymer system azole units were also involved in the inner sphere of the complex. Synergism between coordination with metal ions and intramolecular hydrogen or ionic bonds was shown. The interpolymer complex was an effective system for binding, extracting, and concentrating copper ions from water.

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“…23,24 Among the various derivatives, N-vinyl-1,2,4-triazole (NVTri) enables polymerization, affording the water-soluble homopolymer PNVTri. 25,26 The copolymers have been used in a wide range of applications such as organic field effect transistors, 27 controlled release systems, 28 nano-particle-based composites, 29 proton conducting electrolytes, [30][31][32][33][34] polycations, 30,35 and energetic polymer salts. 36 We previously reported the controlled synthesis of PNVTri-based block copolymers by a conventional RAFT process in homogeneous solutions by using amphiphilic linear and star block copolymers combined with optoelectronic carbazole units, 37,38 block copolymer precursors (for ion-conductive nanoparticles), 39 and cross-linked nanoparticles (for application in organic photovoltaic cells).…”

Section: Introductionmentioning

confidence: 99%

Triazole-based nano-objects by polymerization induced self-assembly and modification of triazole motifs

Kumano,

Miyakawa,

Masuko

et al. 2024

Polym. Chem.

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Equilibria in solutions of complexes of poly(acrylic acids) and poly(N-vinylazoles)

Cited by 15 publications

References 3 publications

Controlled stabilisation of silicic acid below pH 9 using poly(1-vinylimidazole)

Controlled stabilisation of silicic acid below pH 9 using poly(1-vinylimidazole)

Complexation of copper(II) ions with imidazole–carboxylic polymeric systems

Triazole-based nano-objects by polymerization induced self-assembly and modification of triazole motifs

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